Information card for entry 1531913

Structure parameters

• Chemical name: K1.32 (Mg0.95 Cr0.02 Al0.03)2 (Si2 O6 (O H))
• Formula: Al0.06 Cr0.04 H K1.32 Mg1.9 O7 Si2
• Calculated formula: Al0.06 Cr0.04 K1.32 Mg1.9 O7 Si2
• Title of publication: The crystal structure and cation ordering of Phase-X- (K1-x-n)2 (Mg1-n (Al, Cr)n)2 Si2 O7 H2x : a potential K- and H-bearing phase in the mantle
• Authors of publication: Mancini, F.; Harlow, G.E.; Cahill, C.
• Journal of publication: American Mineralogist
• Year of publication: 2002
• Journal volume: 87
• Pages of publication: 302 - 306
• a: 5.028 Å
• b: 5.028 Å
• c: 13.216 Å
• α: 90°
• β: 90°
• γ: 120°
• Cell volume: 289.348 ų
• Number of distinct elements: 7
• Space group number: 185
• Hermann-Mauguin space group symbol: P 63 c m
• Hall space group symbol: P 6c -2
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No